soames



2 SheetsSheet 1.

Patented Feb. 8, 1898.

C A. SOAMES. CONSTRUCTION OF DYNAMO ELECTRIC MACHINERY. No. 598,540..

(No Model.)

7725mm; I

'THE "CRIME PETEIS CG PHOTO-LYING WASHINCITUN, D. C

) 2 SheetsSheet 2.

A SOAMES CONSTRUCTION OF DYNAMO ELEGTRIG MACHINERY. No. 598,540.Patented Feb. 8, 1898.

I (No Model.

@WM KT W G UNITED STATES PATENT Ornrc ALFRED SOAHES, OF LONDON, ENGLAND,ASSIGNOR TO TIIE DAVIES MOTOR COMPANY, LIMITED, OF SAME PLACE.

CONSTRUCTION OF lDYNAMO-ELECTRIC MACHINERY.

SPECIFICATION forming part of Letters Patent No. 598,540, dated February8, 1898.

Application filed December 6, 1897. Serial No. 660,966. (No model.)

To all whom it may concern: of a bracket D. D are arms radiating from Beit known that I, ALFRED SOAMEs, a subthis boss. They are bolted at theirends by V ject of the Queen of Great Britain, residing bolts E up to theends of tubes E, which are at 16 Red Lion Street, Olerkenwell, London,securedtransverselyacross theframe by type- 55 England, have inventedcertain new and usemetal or other castings E ful Improvements in theConstruction of Dy- O is the type-metal casting securing thenamo-Electric Machinery, of which the folrings to the frame. lowing is aspecification. The tubes E are first secured in proper po This inventionrelates especially to the consition to the frame. To effect this, thetubes 60 IO struction of electromotors in which a pile of are placedinto holes or recesses which extend annular stampings is required to beaccutransversely through the frame from one side rately centered in aframe which also carries of it to the other. The ends of the radial theshaft of an armature to be revolved witharms D of the brackets D arethen attached in the annular stampings withanarrow clearby bolts E tothe ends of the tubes E, and 65 ance or air-gap between them. bothbrackets are held in any suitable man- According to this invention theannular her in properposition relatively to the frame. stampin gs andthe bearings for the armature- Type-metal or other suitable material isthen shaft, or one or other of these, are secured to poured into thespaces between the tubes and the frame concentrically one with the otherthe interior of the recesses, and the tubes are 70 by means of type orsuch like metal or other so securedin position. Afterboth end bracksuitable material cast between them and the ets D have thus been securedto the frame the frame. I bearing-bushes B are secured within the cen-Figure l of the drawings annexed shows an tral bosses D of the bracketsD. To do this, end view, one-half in section, of the frame of the bushesare placed onto the armature-shaft 75 a machine so constructed. Fig. 2is a lonand also passed into the central bosses D, one gitudinalsection. Fig. 3 is a part longitudiof the brackets D being taken offfrom the nal section on a larger scale. Fig. 4 is a lonframe A andafterward replaced to allow of gitudinal section showing the way inwhich this, and while the shaft is held in any suit the stampings areheld in place within the able manner in proper position relatively to 80frame and concentric with the bearings at the *the frame type-metal orother suitable matime when typemetal is run into the space beterial isrun into the spaces between the tween them and the frame. Fig. 5 shows abushes B and the interior of the bosses, and modified form of ring usedfor holding the asthe bushes are thus secured truly in line withsemblage of stampings. Figs. 6 and 7 show one another. After this hasbeen done the 85 a modified way in which the brackets whichring-stampings O are secured in position withcarrythebearings forthearmature-shaft may in the frame. To effect this, the rings are be fixedto the frame. Fig. 8 shows an alterplaced onto a mandrel F. (See Fig.4:.) The native way in which the bearings for the armandrel is carriedby an axis G, which is of mature-shaft may be formed. the same size asthe armature-axis. F is a 0 0 A is the frame, shown to be cylindrical,but fixed'flange at one end of the mandrel, and it might be square or ofother form. F a loose flange at the other end. The rings A is aninwardly-projecting flange. are placed onto the mandrel between the Bare the bushes or bearings for the armaflanges, and the loose flange isforced toward ture-shaft. the fixed flange by turning the nut II, which9 5 O are the rings or stampings. They are screws onto a screw-threadcut around the shown as being circular on the exterior, but axis G. Inthis way the rings are all clamped they might be square or of otherform. The togetherbetween the flanges. The axis of the apertures formedthrough these rings to remandrel is then placed into the bearings Bceive the field-windings are not shown. and is drawn endwise therein bya nut I, I00

The bushes B are held by type-metal or other which screws onto ascrew-thread upon it and castings within a central boss D, forming partabuts against the end of one of the bearings.

In this way one side of the assemblage of rings is held against theinner face of the flange A.

A ring K is also placed against the other side of the assemblage ofrings and is held firmly against it by clamping-pieces L, carried by theend of the mandrel. The ring has a groove formed around its outercircumference, as shown. A corresponding groove is also formed aroundthe inner circumference of the frame. Other grooves A at distances apartfrom one another are also formed in the frame parallel to the axis.lVhile the mandrel is held in place in the bearings B, the frame isplaced on end, with the ring K uppermost, and type-metal or othersuitable material is cast into the space between the frame and thestampings O and ring K and into the several grooves above mentioned.When the metal has set, the mandrel is removed, leaving the stampingsaccurately centered within the frame and securely held in place.

Instead of grooves being cut around the ring K and frame for thetype-metal or other material to be run into, as above described,

the outer circumference of the ring might be beveled, as shown at Fig.5, and the portion of the inner circumference of the frame opposite tothe ring be correspondingly beveled. Instead, also, of the ends of thearms D of the bracket D being bolted to the ends of tubes E, secured tothe frame by type-metal or other castings, they might be bolted directlyto the frame, or they might, as shown at Figs. 6 and 7, be made to enterrecesses in the frame and be secured therein by a typemetal or othercasting. Instead, also, of the bushes B being held within the bosses Dof the brackets D by type-metal or other castings, they might beremovable and held in place by a screw or otherwise, as illustrated atFig. 8.

What I claim isl. A dynamo-electric machine in which an assemblage ofsheet-metal rings and the bearings for the armature-shaft are secured tothe frame concentrically one with the other by type-metal or othersuitable material cast between them and the frame.

2. A dynamo-electric machine in which an assemblage of sheet-metal ringsis secured to the frame concentrically with the bearings for thearmature-shaft by type-metal or other suitable material cast betweenthem and the frame.

3. A dynamo-electric machine in which the bearings for thearmature-shaft are secured to the frame by castings of type-metal orother suitable material.

4. A dynamo-electric machine in which an assemblage of sheet-metal ringsused for carrying the field-windi n gs is held in place within a frameconcentric with the bearings for the armature-axis by type-metal orother suitable material cast into the space between its outercircumference and the frame and by one side of the assemblage of ringsbeing held up to a flange formed around the interior of the frame by aring which is held against the opposite side of the assemblage of ringsby the typemetal or other casting.

5. A dynamo-electric machine in which the bearings for thearmature-shaft are retained by castings of type-metal or other suitablematerial in brackets secured to the ends of the frame.

6. A dynamo-electric machine in which the bearings for thearmature-shaft are carried by brackets held by bolts against the ends oftubes or blocks secured to the frame by castings of type-metal or othersuitable material.

7. The hereinbeforedescribed method of securing an assemblage ofsheet-metal rings side by side within the frame of a dynamoelectricmachine concentric with the armature bearings such method consisting inmounting the stampings side by side upon a mandrel whose axiscorresponds with the armature-axis placing the axis of the mandrel intothe bearings and drawing it endwise until one side of the assemblage ofrings bears against a flange formed around the interior of the frame andsubsequently after placing the frame on end pouring in type-metal orother suit-able material into the space between

